def test_deriv(self):
"""Test ad.d() function"""
z = self.y * self.x
dz = ad.d(z, self.x)
assert_allclose(dz, self.y)
z = self.x_row ** 2
dz = ad.d(z, self.x_row)
assert_allclose(dz, [0.0, 1.0, 2.0, 3.0, 4.0])
z = self.y * self.x_row
dz = ad.d(z, self.x_row)
assert_allclose(dz, self.y)
def test_d2(self):
"""Test ad.d2() function"""
z = self.y * exp(-2*self.x)
dz = ad.d(z, self.x)
ddz = ad.d2(z, self.x)
assert_allclose(dz, -2*z)
assert_allclose(ddz, 4*z)
z = self.x_row ** 2
ddz = ad.d2(z, self.x_row)
assert_allclose(ddz, 2.)
z = self.y * sin(2*self.x_row)
ddz = ad.d2(z, self.x_row)
assert_allclose(ddz, -4*z)
